I am investigating an interesting problem regarding a simple card game, and I ultimately want to calculate the probability that this game results in all the cards in a hand end up with the same value (they change based on the game rules).
In this game, all of the "cards in hand" of any number of players eventually converge to the same card after a certain number of iterations of the game. This game proceeds as follows:
1) Each player randomly selects a card from a standard shuffled deck. These cards are known as the ”cards in hand”, or ”hand cards”. Once recorded, these cards are reinserted into the deck, which is subsequently reshuffled.
2) A card is drawn from the top of the deck. If the suit of the drawn card matches the suit of a player’s card in hand, the player then changes their recorded card in hand to that of the card subsequent the drawn card. For example, if a player’s current card is a Jack of Spades, the drawn card is an Ace of Spades, and the next card in the deck is a Queen of Hearts, the player’s card in hand changes to a Queen of Hearts. This process constitutes one iteration. The card is not reinserted into the deck, and the deck is not reshuffled. Then, another iteration begins.
3) At the end of the game, all of the recorded cards in hand should be the same.
In the version of the game I am investigating, I assume that there are three players, i.e. three "hand cards", and that they all pick cards of different suits. What I need help finding is the number of orderings of the deck (from which cards are drawn) so that at the end when all cards are draw, the three cards still have different suits (not necessarily the same ones). I was able to deduce, based on the game rules, that if the three cards have different suits in the hand, then they MUST have different suits at any point during the duration of this game. If this is to happen, then for every card draw, we can have:
a. the card drawn from the deck matches the suit of one of the hand cards, and the subsequent card drawn from the deck has the same suit as both - in this case the suits do not change in the hand
b. the card drawn from the deck matches the suit of one of the hand cards, and the subsequent drawn card from the deck is of the one suit that is NOT present in the hand (Spade, Heart, Club goes to Diamond, Heart, Club)
c. the card drawn from the deck does not match the suit of any of the hand cards, in which case nothing happens and the next card is drawn
I know this is a hard and lengthy question, and I will be grateful to whoever can help me figure it out.